Recent progress in transition metal oxide/sulfide quantum dots-based nanocomposites for the removal of toxic organic pollutants

Fluorescence Resonance Energy Transfer Study Between ZnS Quantum Dots and Fluoranthene

“…This technique also allows for the identification of lattice orientations, directionalities, and defects within the quantum dots, as reported in prior studies. [69][70] Within a scale of 5 nm, nanoparticles of ZnS, ranging in diameter from 3 to 6 nm, displayed a spherical configuration characterized by heightened surface energy (as evidenced by Table 1).…”

Ultrasonic spray pyrolysis synthesis of TiO2/Al2O3 microspheres with enhanced removal efficiency towards toxic industrial dyes

“…1,2 However, the anthropogenic addition of these contaminants in the water now poses a signicant concern because of their severe health impacts as they are proven carcinogens. [3][4][5] This imposes a crucial need to develop new, rapid, and advanced remediation approaches capable of removing organic contaminants to provide drinkable water to people. Several physical, chemical, and biological techniques, such as adsorption, absorption, membrane separation, occulation and coagulation, and electrochemical and catalysis, have been applied recently for the destruction and removal of organic contaminants before their release in wastewater.…”

Role of Anions in the Synthesis and Crystal Growth of Selected Semiconductors

“…Heterogeneous photocatalysis using semiconductors has drawn attention following the discovery of the Honda-Fujishima effect in 1972 ( Liu et al, 2014 ). Photocatalysis has also gained remarkable attention due to its potential application for energy shortage and environmental issues which include hydrogen production from water ( Shi et al, 2019 ), carbon dioxide reduction to fuels ( M.S et al, 2021 ), and toxic pollutants removals in the environment ( Koutavarapu et al, 2021 ). Semiconductor consists of a band structure in which the conduction band (CB) is separated from the valence band (VB) by a band gap.…”